Janus77 Posted December 11, 2020 Author Share Posted December 11, 2020 Rush rush rush. don’t F up!!! Woofer and port holes to go. 2 Link to comment Share on other sites More sharing options...
BioBrian Posted December 11, 2020 Share Posted December 11, 2020 Very nice. Stay cool! 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 11, 2020 Author Share Posted December 11, 2020 3 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 11, 2020 Author Share Posted December 11, 2020 Managed to get all holes done, front baffles in the car on the way home to dye and poly. still need to rebate for the braces. Taking a day off this week if the boss will give one to me.. maybe I take Thursday and just work through 10am till 9.. Link to comment Share on other sites More sharing options...
Janus77 Posted December 11, 2020 Author Share Posted December 11, 2020 Holy cow! 6 Link to comment Share on other sites More sharing options...
PKay Posted December 11, 2020 Share Posted December 11, 2020 38 minutes ago, Janus77 said: Holy cow! This thing is going to Rock. I’m not sure if their is a SNA record for fastest time built, but if there was, your build would have to be up there. 1 Link to comment Share on other sites More sharing options...
BioBrian Posted December 11, 2020 Share Posted December 11, 2020 Such an interesting mid driver. I'd be tempted to mount it inside-out for a few weeks, just to enjoy. Link to comment Share on other sites More sharing options...
Janus77 Posted December 11, 2020 Author Share Posted December 11, 2020 1 hour ago, BioBrian said: Such an interesting mid driver. I'd be tempted to mount it inside-out for a few weeks, just to enjoy. what this old thing? 1 Link to comment Share on other sites More sharing options...
BioBrian Posted December 11, 2020 Share Posted December 11, 2020 Old, alright. You're taking so long, it's gathering dust . I want to know how they wind the inner voice coil. (My hands'd be too big). Looks like it would enjoy lots of elbow room to breathe - pretty solid and complex structure back there. Link to comment Share on other sites More sharing options...
tuyen Posted December 12, 2020 Share Posted December 12, 2020 Originally was going to buy parts to build Troels TL2, but due to lack of interest to commit that much dosh for another speaker project, an thinking of the 3WC-15 design. Already have a pair of faital 15pr400 woofers. And the tweeters are available in aus for a good price. Just the 18sound mid drivers that are quite pricey from overseas... but substantially much less of an outlay compared to the TL1/2 design. Hence very interested how you find this design when you get it up and running. Following closely Link to comment Share on other sites More sharing options...
camross Posted December 12, 2020 Share Posted December 12, 2020 22 minutes ago, tuyen said: Originally was going to buy parts to build Troels TL2, but due to lack of interest to commit that much dosh for another speaker project, an thinking of the 3WC-15 design. Already have a pair of faital 15pr400 woofers. And the tweeters are available in aus for a good price. Just the 18sound mid drivers that are quite pricey from overseas... but substantially much less of an outlay compared to the TL1/2 design. Hence very interested how you find this design when you get it up and running. Following closely Not a huge difference in size between the TL2 and the 3WC-15. Is there much difference in price if starting from scratch? Troels does state the TL1 is the best sounding speaker he has made. Was price the main reason you picked the 3WC Janus? Link to comment Share on other sites More sharing options...
Janus77 Posted December 12, 2020 Author Share Posted December 12, 2020 4 minutes ago, camross said: Not a huge difference in size between the TL2 and the 3WC-15. Is there much difference in price if starting from scratch? Troels does state the TL1 is the best sounding speaker he has made. Was price the main reason you picked the 3WC Janus? price was probably the main factor. The TL would come in at nearly double the 3wc I think. Also TL is a larger speaker again, and I’m already pushing it for space. Link to comment Share on other sites More sharing options...
tuyen Posted December 12, 2020 Share Posted December 12, 2020 Very big price difference. Just a pair of the 18" BMS drivers on the TL1/2 would set one back close to $2k delivered to AU. Link to comment Share on other sites More sharing options...
camross Posted December 12, 2020 Share Posted December 12, 2020 2 hours ago, Janus77 said: price was probably the main factor. The TL would come in at nearly double the 3wc I think. Also TL is a larger speaker again, and I’m already pushing it for space. Fair enough. It would be interesting to see how different they are to the DTQWT. Link to comment Share on other sites More sharing options...
Janus77 Posted December 12, 2020 Author Share Posted December 12, 2020 13 minutes ago, camross said: Fair enough. It would be interesting to see how different they are to the DTQWT. Be interesting to get a few of TG’s designs together, and listen to any differences and maybe compare to some commercial speakers and see if anything stands out in his preference for how they voice etc. Applying dye this evening and first coat of poly. If I’m any chance of finishing cutting before I lose workshop access, I’ll need an extra day off this week. Hopefully my boss is in a good mood. Maybe Thursday off, then I can spend 10am till 9pm in the workshop. Plenty of time to cut the remaining rebates and glue up. Link to comment Share on other sites More sharing options...
Janus77 Posted December 12, 2020 Author Share Posted December 12, 2020 (edited) The poly will make the red a lot richer. That’s 3 applications of barn door red dye. At 6 minutes sit before wiping off each time. Edited December 12, 2020 by Janus77 2 Link to comment Share on other sites More sharing options...
Janus77 Posted December 12, 2020 Author Share Posted December 12, 2020 (edited) I was a bit too gutted initially to post this, but on consultation with Troels and my woodworking instructor I think I’ve found a good fix. In my haste to finish routing, I made a mistake. Test router on the rear side of the front baffle just a touch down on either side of the circle to check the width for the woofer rebate. And then instead of repositioning the router on the other side of the baffle, I just started cutting the woofer rebate. Luckily I didn’t go too deep that I was unable to rout the front of the baffle for the driver. There was about 5mm in between once done. Everyone telling me not to rush, and I just ploughed ahead as fast as possible and stuffed up. It could have been worse if I’d gone deeper. glued some fillets in to screw the driver screws into, and will bog the rest of the channel with builders bog, which sets rock hard and sticks. Thinking about a couple more small fillets glued outside the fillets in the photo to give them a bit of extra support. Unfortunately the BB side had biscuit repairs on the face. I’ve also found after dying there were some sanding marks from where I sanded perpendicular to the grain, I thought I’d sanded them out. anyway first time I’ve built something, I expected to make a few mistakes. The sanding marks are only visible on close inspection, no going back now! Hopefully the filets and bog do the job.. On the plus side there is now more depth of wood for the driver screws to go into. Come on people, let me have it... Edited December 12, 2020 by Janus77 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 12, 2020 Author Share Posted December 12, 2020 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 13, 2020 Author Share Posted December 13, 2020 (edited) Ok, have decided to cut 2 circles, with the diameter about 6cm larger than the woofer rebate, and then router the inside to the same diameter of the inside edge of the rebate, then glue these to the rear side of each front baffle, which will increase support for the woofer. I'll do it on both so the result is the same. In the photo above I'll level the fillets with the baffle, and then fill in between them with this builders bog i sourced from Swaddlings. Will do a 45 degree chamfer on the inside corner of these circles too, to allow the air to move properly. Feeling good about this as a solution, the woofers will be well supported. It's probably more my own peace of mind than anything at this stage. Just need to check dimensions so they don't interfere with bracings, should be fine. That's a load off my mind, have been stewing even after getting Troel's ok on just the fillets. Edited December 13, 2020 by Janus77 2 Link to comment Share on other sites More sharing options...
Janus77 Posted December 13, 2020 Author Share Posted December 13, 2020 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 14, 2020 Author Share Posted December 14, 2020 My wife told me not to rush, and book more workshop time instead. (i can get 5 days for $250 that i can use over 3 months, or a full month of access for $280). I've pushed hard, too hard. I can't see this being completed by the end of Thursday's session. I'm pretty happy with the plan for the woofer supports, they'll be stronger than the original. I should have sanded the front of the baffles better, there are some scrapes and marks - which i'll chalk up as character. They're not visible unless inspecting closely, so i'm nit picking at this point. Annoying as I'd have finished these better if more relaxed on the time frame. Anyway baffles looking good, the red really pops. Given i'll most likely book more workshop access, will revise my plan slightly and chill the F out about the timeline Now I'm thinking: Thursday - Cut all side panel bracing rebates, 45 degree chamfer on internal mid drivers and new woofer support. Glue up as much of the boxes as possible. If i have time that will be everything glued except for front and rear baffles. cut woofer support rings (push this if i run out of time) Additional day 1: Construct grill frames, (45 deg chamfer inside edge, 15 deg chamfer outside edge, 45 degree mitre corners, and horizontal support if needed). Glue in woofer supports. Install castors. Drill grill frames with front baffle dry fit and clamped. Additional day 2: router fly wire line channel in grill frames, polish front baffles, glue plugs into front baffles and grill frames. Take all speaker parts home. Home to do: couple of coats of poly on outside of cabs. vinyl, run driver wires, glue in felt, install crossovers and wire to binding posts. glue in front and rear baffles. install mesh on grill frames. enjoy. Additional day 3: Wife wants a screen stand for our desk that we can slide the keyboard and xbox controller under, thinking 24mm ply with 45 degree mitre corners, vinyled to match the desk. Additional day 4: Son needs a music book stand for when he's drumming, might knock something up. Additional day 5: Finishing up the book stand or screen stand. (let's face it, probably still running behind schedule on the speakers..) 3 Link to comment Share on other sites More sharing options...
Janus77 Posted December 14, 2020 Author Share Posted December 14, 2020 My lovely wife has given me another leave pass this evening. I'll drop the kids home from school and daycare, and head to the workshop for a few hours. I think i'll focus on the side panel rebates, and if i manage to complete them, i'll try and cut these 18mm thick rings to support the woofers. Link to comment Share on other sites More sharing options...
Janus77 Posted December 14, 2020 Author Share Posted December 14, 2020 (edited) All rebates cut! Edited December 14, 2020 by Janus77 1 Link to comment Share on other sites More sharing options...
Janus77 Posted December 14, 2020 Author Share Posted December 14, 2020 (edited) I’m back people, broken out of the funk with a solid session of woodworking. i cut the rebates using a bit of wood as a guide as suggested by Brian. Once you know the offset needed for the router guide it’s pretty fast and easy to get a good channel. The router bit must have been 16.5mm or something, didn’t need much extra to fit the 18mm braces. Edited December 14, 2020 by Janus77 4 Link to comment Share on other sites More sharing options...
Janus77 Posted December 14, 2020 Author Share Posted December 14, 2020 (edited) Looks like I can take all day Thursday off, that’s 10am to 9pm I can spend in the workshop. started wondering if I might not get those grill frames built.. Jobs for Thursday: 1. cut woofer support circles. 2. chamfer mid driver (and maybe woofer?) holes 3. polish front baffles 4, cut down and sand fillets level 5. glue woofer support circles 6. router disk out of woofer hole 7. construct tweeter boxes 8. glue up cabinets (sans front and rear baffles) 9. install castors 10. cut port tubes in half 11. drill rear baffles for binding posts 12. drill mid and tweeter box’ for speaker wire 13? construct grill frames Is this possible in 10hrs of workshop time? Probably not.. I'll only do the grill frames IF running well ahead of schedule. Edited December 14, 2020 by Janus77 Link to comment Share on other sites More sharing options...
Recommended Posts